TM 5-3805-261-23-1
ELECTRICAL SYSTEM TROUBLESHOOTING PROCEDURES - CONTINUED
0008 00
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
c. Connect meter positive lead to
37. Engine Cranks, but Will Not
purple disconnected wire and meter
Start in Cold Weather (Fuel
negative lead to chassis ground.
Available) - Continued.
d. Crank engine, press starting aid
1. If voltage is indicated, replace starting
button and observe meter.
aid valve (WP 0050 00).
2. If voltage is not indicated, go to Test 6.
6.
Test temperature switch wire for
continuity.
a. Place battery disconnect switch in
OFF position.
b. Disconnect wire between starting
aid switch and starting aid valve at
both ends.
c. Set multimeter to appropriate ohm
(Ω) range.
1. If continuity is indicated, replace
d. Connect meter positive lead to one
starting aid switch (WP 0077 00).
end of wire. Connect meter
negative lead to other end of wire.
2. If continuity is not indicated, repair
open circuit in wire (WP 0021 00).
1.
Test heater circuit voltage.
38. Heater Will Not Operate or
Will Not Operate in High
Speed or Low Speed Position
(CCE Machine).
a. Place battery disconnect switch in
OFF position.
b. Check heater fuse.
1. Replace fuse if blown (WP 0096 00).
2. If fuse is not blown, reinstall fuse and
go to Step c.
c. Disconnect heater fan motors
wires.
d. Set multimeter to appropriate
voltage range.
e. Connect meter negative lead to
chassis ground.
f. Place battery disconnect switch in
ON position.
